Chen, Si-Chong and Poschlod, Peter and Antonelli, Alexandre and Liu, Udayangani and Dickie, John B. (2020) Trade-off between seed dispersal in space and time. ECOLOGY LETTERS, 23 (11). pp. 1635-1642. ISSN 1461-023X, 1461-0248
Full text not available from this repository. (Request a copy)Abstract
Seed movement and delayed germination have long been thought to represent alternative risk-spreading strategies, but current evidence covers limited scales and yields mixed results. Here we present the first global-scale test of a negative correlation between dispersal and dormancy. The result demonstrates a strong and consistent pattern that species with dormant seeds have reduced spatial dispersal, also in the context of life-history traits such as seed mass and plant lifespan. Long-lived species are more likely to have large, non-dormant seeds that are dispersed far. Our findings provide robust support for the theoretical prediction of a dispersal trade-off between space and time, implying that a joint consideration of risk-spreading strategies is imperative in studying plant life-history evolution. The bet-hedging patterns in the dispersal-dormancy correlation and the associated reproductive traits have implications for biodiversity conservation, via prediction of which plant groups would be most impacted in the changing era.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DELAYED GERMINATION; THROUGH-SPACE; PLANT TRAITS; R PACKAGE; DORMANCY; EVOLUTION; POPULATION; DISTANCE; GROWTH; ADAPTATIONS; Annual; dormancy; germination; iteroparity; lifespan; longevity; perennial; seed bank; seed dispersal |
| Subjects: | 500 Science > 570 Life sciences 500 Science > 580 Botanical sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften > Lehrstuhl für Ökologie und Naturschutzbiologie (Prof. Dr. Peter Poschlod) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 12 Mar 2021 08:39 |
| Last Modified: | 12 Mar 2021 08:39 |
| URI: | https://pred.uni-regensburg.de/id/eprint/43864 |
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